2. Install the main engine horizontally at the top of the house, as close as possible to the hall connected with the air inlet.
3. When the main ventilator is fixed with the fixed frame, the rubber shock-proof block is used in the middle to reduce the vibration, and the fixed frame of the main ventilator is calibrated as horizontal without distortion.
4. There should be enough space near the installation position of ventilation main engine to facilitate maintenance; When the home fresh air main machine is installed in the ceiling, there should be a 450×450 manhole near it, and the reserved position of the manhole should be convenient for maintenance, with no shelter above it.
5. Configure the power cord according to the motor power and voltage of the ventilation host.
The power supply should be independent, and the wiring should be correct, firm and well grounded; The power cord should be well insulated and not exposed; The main ventilator should have an independent control device.
6. The air duct adopts UPVC pipe, and when the tuyere connected by hose is adopted, the length of hose should not exceed 35cm.
7. The length of hose for exhaust pipe shall not exceed 5M, and UPVC air duct shall be used when it exceeds 5M.
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